Thanks guys,
Of course i had a photo for reference, and yes it was all done in photoshop (8 hours) with a f*****g graphic tablet that worked half the time ...
I made a custom brush for the hair ('t was very handful for the glossiness of the hair)
For the method, if you understand french :
https://forum2d.free.fr/concours/tut_beart/beart.html
That's ok for Sarah
Today man, tomorrow bird...i already have the plumage